Workholder for sewing machines



Jan. 26, 1932. CHASQN WORKHOLDER FOR SEWING MACHINES Filed July 30, 1950m 3 a m a M m Wi/Wew W 5% Patented Jan. 26,1932

UNITED ST TES-PATENT OFFICE DANI L H. GHASON, F ELIZABETH, NEW JERSEYASSIGNOR TO THE SINGER MANU- FACTURING COMPANY, or ELIZABETH, NEWJERSEY, A CORPORATION on NEW JERSEY" p wonxnoLnER FOR SEWING MACHINESApplication filed July so,

i This invention relates to devices for holda ing tretched for thestitching operation a section of work to be darned or embroidered,Whileholding the surroundingportions of the Work securely out of thepath of the sewing machine needle. r I p a The invention aims to provideI a workholder of this character with improved means for securelyholding the portions of the work a vantages attained thereby will beobvious to those skilled in the art from the following detaileddescription of a preferred embodiment of the invention, taken inconnection with the accompanyingdrawings, in which l is a perspectiveview of a work-holder embodying the invention. Fig. 2 is a transversesection through the work-holder adjacent one of the I movablework-holcling fingers. Fig.3 is a section through one of the bearingsfora work-holding finger andFig. i is a perspective view of a work-holdingfinger in unsprung or unstrained condition, before it is engaged withits supporting bearing.

The invention is disclosed as embodied in a work-holder constructedsubstantially in accordance with thedisclosure of the U. S.

patent to De Voe, No. 939,894, issuedNov.

l Thestretching frame comprises an endless band or hoop 1 of sheet metalhaving an ex ternal channelAQ formed by the lower continuous lip 3'andthe series of upper spaced lips 4 intermediate which rise the arms 5hav- Fig. 2.

1930. Serial No. 471,676.

tionally resist turning of the finger 8 in its bearing. Considerablewearin the bearings willnot impair the frictional operation of thefingers, as the long'connecting lengths of spring wire between the ends7 of each finger give a considerable range of spring action betweensuchends the bearings. Intermediate the relatively spaced lips ,3, 4i andlying within the channel 2 is arranged theusual detachable elastic band10, such as disclosed in the De Voe Patent No. 939,894, previouslyreferred to. c

Having thus set forth the nature of the invention, what I claim hereinis: a

' 1. A work-holder comprising a ring 7 to take up any wear in shapedframe-element over which the workis H stretched, an elastic bandcooperating there with in clamping the margin ofthat portion a ofthe-work stretched across said frame-element, and a series ofindependently movable spaced Work-embracing finger-elements each havinga bearing engagement with 7 said frame-element, said finger-elementsbeing each initially formed with hearing end-portions out of alinement,said end-portions being held sprung into alinement by their bearingengagement Withsaid frame-element.

2. A work-holder comprising a ring- Shaped sheet metal frame formed atintervals with upstanding tongues terminating in hearing loops, and aseries of work-holding fingers journaled in said bearing loops forswinging movement, each of said fingers comprising. a wire doubled uponitself'midway of its ends and bent to hook form, the ends of each wire 7being bent to extend toward each other and i being embraced by thebearing loop of its respective, supporting tongue, each wire beinginitially formed with its ends ont of alinement, said ends being heldsprung into alineinent by its respective supporting bearing 1 00p. r

In testimony whereof I have signed my name to this specification.

winners H, CHASON,

they will be held under strain-and will fric-

